RU2014144292A - METHOD FOR SEPARATING OLEFINS IN IMPLEMENTATION OF EASY CRACKING - Google Patents

METHOD FOR SEPARATING OLEFINS IN IMPLEMENTATION OF EASY CRACKING Download PDF

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RU2014144292A
RU2014144292A RU2014144292A RU2014144292A RU2014144292A RU 2014144292 A RU2014144292 A RU 2014144292A RU 2014144292 A RU2014144292 A RU 2014144292A RU 2014144292 A RU2014144292 A RU 2014144292A RU 2014144292 A RU2014144292 A RU 2014144292A
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fraction
petroleum ether
liquid
wash column
enriched
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RU2624010C2 (en
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ДУК Туат ПХАМ
Хольгер ШМИГАЛЛЕ (умер)
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Линде Акциенгезелльшафт
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1406—Multiple stage absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1487—Removing organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C07C11/04—Ethylene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C07C11/06—Propene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
    • C07C4/04—Thermal processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
    • C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/20—C2-C4 olefins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/40—Ethylene production

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1. Способ получения олефинов, в котором содержащее углеводороды сырье поступает в печь для крекинга, где длинноцепочечные углеводороды содержащего углеводороды сырья, по меньшей мере, частично расщепляются на короткоцепочечные олефины, включая этилен и пропилен, и при этом образующийся при крекинге газ крекинга (1) последовательно проходит через нижнюю секцию (11) и верхнюю секцию (12) промывной колонны (10) противотоком к жидким промывным средам (43, 31), отличающийся тем, чтов нижней секции (11) промывной колонны (10) используют фракцию (43), обогащенную петролейным эфиром, а в верхней секции (12) промывной колонны (10) используют водообогащенную фракцию (31) в качестве промывных сред (43, 31), при этом в качестве фракции, обогащенной петролейным эфиром, используют фракцию углеводородов, до 80% которой кипит при температуре 130°C при атмосферном давлении,промывная колонна (10) с помощью тарелки (14) технологически разделена на нижнюю секцию (11) и верхнюю секцию (12), при этом тарелка (14) является непроходимой для жидкости в направлении сверху вниз,с тарелки (14), которая делит промывную колонну (10) на нижнюю секцию (11) и верхнюю секцию (12), отбирают жидкую фазу петролейный эфир-вода (51), ижидкую фазу петролейный эфир-вода (51) разделяют на жидкую фракцию петролейного эфира и жидкую водную фракцию, при этомжидкая фракция петролейного эфира, по меньшей мере, частично поступает в нижнюю секцию (11) промывной колонны в качестве фракции (43), обогащенной петролейным эфиром, а жидкая водная фаза, по меньшей мере, частично поступает в верхнюю секцию (12) промывной колонны (10) в качестве водообогащенной фракции (31).2. Способ по п. 1, отличающийся тем, что печь для крекинга работает таким образом, что газ крекинга (1) содержит пропилен и этилен в соо1. A method for producing olefins, in which the hydrocarbon-containing feed is fed to a cracking furnace, where the long-chain hydrocarbons of the hydrocarbon-containing feed are at least partially split into short-chain olefins, including ethylene and propylene, and the cracking gas generated during cracking (1) sequentially passes through the lower section (11) and the upper section (12) of the wash column (10) countercurrent to the liquid wash media (43, 31), characterized in that the lower section (11) of the wash column (10) uses fraction (43), enriched petroleum ether, and in the upper section (12) of the washing column (10), a water-enriched fraction (31) is used as washing media (43, 31), while the fraction of hydrocarbons enriched in petroleum ether is used, up to 80% of which boils at a temperature of 130 ° C at atmospheric pressure, the wash column (10) using the plate (14) is technologically divided into the lower section (11) and the upper section (12), while the plate (14) is impassable for the liquid in the direction from top to bottom , from the plate (14), which divides the wash column (10) into the bottom section (11) and upper section (12), the liquid phase of petroleum ether-water (51) is selected, the liquid phase of petroleum ether-water (51) is separated into a liquid fraction of petroleum ether and a liquid aqueous fraction, while the liquid fraction of petroleum ether, at least at least partially enters the lower section (11) of the wash column as fraction (43) enriched in petroleum ether, and the liquid aqueous phase at least partially enters the upper section (12) of the wash column (10) as a water-enriched fraction ( 31) .2. A method according to claim 1, characterized in that the cracking furnace operates in such a way that the cracking gas (1) contains propylene and ethylene in

Claims (8)

1. Способ получения олефинов, в котором содержащее углеводороды сырье поступает в печь для крекинга, где длинноцепочечные углеводороды содержащего углеводороды сырья, по меньшей мере, частично расщепляются на короткоцепочечные олефины, включая этилен и пропилен, и при этом образующийся при крекинге газ крекинга (1) последовательно проходит через нижнюю секцию (11) и верхнюю секцию (12) промывной колонны (10) противотоком к жидким промывным средам (43, 31), отличающийся тем, что1. A method for producing olefins, in which the hydrocarbon-containing feed is fed to a cracking furnace, where the long-chain hydrocarbons of the hydrocarbon-containing feed are at least partially split into short-chain olefins, including ethylene and propylene, and the cracking gas generated during cracking (1) sequentially passes through the lower section (11) and the upper section (12) of the washing column (10) countercurrent to the liquid washing medium (43, 31), characterized in that в нижней секции (11) промывной колонны (10) используют фракцию (43), обогащенную петролейным эфиром, а в верхней секции (12) промывной колонны (10) используют водообогащенную фракцию (31) в качестве промывных сред (43, 31), при этом в качестве фракции, обогащенной петролейным эфиром, используют фракцию углеводородов, до 80% которой кипит при температуре 130°C при атмосферном давлении,in the lower section (11) of the wash column (10), use fraction (43) enriched in petroleum ether, and in the upper section (12) of the wash column (10) use a water-enriched fraction (31) as wash media (43, 31), this as a fraction enriched in petroleum ether, use the fraction of hydrocarbons, up to 80% of which boils at a temperature of 130 ° C at atmospheric pressure, промывная колонна (10) с помощью тарелки (14) технологически разделена на нижнюю секцию (11) и верхнюю секцию (12), при этом тарелка (14) является непроходимой для жидкости в направлении сверху вниз,the washing column (10) with the help of the plate (14) is technologically divided into the lower section (11) and the upper section (12), while the plate (14) is impassable for the liquid in the direction from top to bottom, с тарелки (14), которая делит промывную колонну (10) на нижнюю секцию (11) и верхнюю секцию (12), отбирают жидкую фазу петролейный эфир-вода (51), иfrom the plate (14), which divides the wash column (10) into the lower section (11) and the upper section (12), the liquid phase is taken from petroleum ether-water (51), and жидкую фазу петролейный эфир-вода (51) разделяют на жидкую фракцию петролейного эфира и жидкую водную фракцию, при этом the liquid phase of petroleum ether-water (51) is separated into a liquid fraction of petroleum ether and a liquid aqueous fraction, while жидкая фракция петролейного эфира, по меньшей мере, частично поступает в нижнюю секцию (11) промывной колонны в качестве фракции (43), обогащенной петролейным эфиром, а жидкая водная фаза, по меньшей мере, частично поступает в верхнюю секцию (12) промывной колонны (10) в качестве водообогащенной фракции (31).the liquid fraction of petroleum ether at least partially enters the lower section (11) of the wash column as fraction (43) enriched in petroleum ether, and the liquid aqueous phase at least partially enters the upper section (12) of the wash column ( 10) as a water-enriched fraction (31). 2. Способ по п. 1, отличающийся тем, что печь для крекинга работает таким образом, что газ крекинга (1) содержит пропилен и этилен в соотношении и,? по меньшей мере, 0,7 кг/кг.2. The method according to p. 1, characterized in that the cracking furnace operates in such a way that the cracking gas (1) contains propylene and ethylene in the ratio and? at least 0.7 kg / kg. 3. Способ по любому из пп. 1 или 2, отличающийся тем, что газ крекинга (1) непосредственно на выходе из печи для крекинга имеет температуру в интервале от 720 до 800°C и/или давление в интервале от 1 (100 кПа) до 4 бар (400 кПа), в частности от 2,5 (250 кПа) до 4 бар (400 кПа).3. The method according to any one of paragraphs. 1 or 2, characterized in that the cracking gas (1) directly at the outlet of the cracking furnace has a temperature in the range from 720 to 800 ° C and / or pressure in the range from 1 (100 kPa) to 4 bar (400 kPa), in particular from 2.5 (250 kPa) to 4 bar (400 kPa). 4. Способ по любому из пп. 1 или 2, отличающийся тем, что из нижней части промывной колонны (10) отбирают жидкую фазу (4), которая содержит тяжелые нефти и частицы углеродистого материала, а газ крекинга (5), который выходит из промывной колонны (10) в газообразном виде из верхней части, является очищенным от частиц углеродистого материала, тяжелой нефти и фракции петролейного эфира.4. The method according to any one of paragraphs. 1 or 2, characterized in that a liquid phase (4) is taken from the bottom of the wash column (10), which contains heavy oils and particles of carbon material, and cracking gas (5), which leaves the wash column (10) in gaseous form from the upper part, it is free from particles of carbon material, heavy oil and petroleum ether fractions. 5. Способ по п. 4, отличающийся тем, что жидкую фазу (4), отобранную из нижней части промывной колонны (10), разделяют на первую жидкую фазу (64), которая содержит частицы углеродистого материала, и вторую жидкую фазу (62), которая содержит тяжелую нефть.5. The method according to p. 4, characterized in that the liquid phase (4), selected from the bottom of the wash column (10), is divided into a first liquid phase (64), which contains particles of carbon material, and a second liquid phase (62) which contains heavy oil. 6. Способ по п. 5, отличающийся тем, что из второй жидкой фазы (62) выделяют необязательно содержащиеся в ней легкие углеводороды (45) и возвращают их в промывную колонну (10).6. The method according to p. 5, characterized in that the optionally light hydrocarbons (45) contained therein are isolated from the second liquid phase (62) and returned to the wash column (10). 7. Способ по любому из пп. 1 или 2, отличающийся тем, что в нижней секции (11) промывной колонны (10) используют простые элементы (13), в частности каскадные тарелки, а в верхней секции (12) промывной колонны (10) используют элементы (15) с более высокой эффективностью, в частности сетчатые тарелки, клапанные тарелки, решетчатые набивки, структурированные набивки и/или слои произвольных набивочных элементов.7. The method according to any one of paragraphs. 1 or 2, characterized in that in the lower section (11) of the washing column (10) simple elements (13) are used, in particular cascade plates, and in the upper section (12) of the washing column (10) elements (15) with more high efficiency, in particular mesh plates, valve plates, trellised packing, structured packing and / or layers of arbitrary packing elements. 8. Способ по любому из пп. 1 или 2, отличающийся тем, что применяемую в нижней секции (11) промывной колонны (10) в качестве промывной среды фракцию (43), обогащенную петролейным эфиром, получают из жидкого содержащего углеводороды сырья. 8. The method according to any one of paragraphs. 1 or 2, characterized in that the fraction (43) enriched in petroleum ether used in the lower section (11) of the washing column (10) as a washing medium is obtained from a liquid hydrocarbon-containing raw material.
RU2014144292A 2012-04-05 2013-04-02 Method of olefin separation in the implementation of easy cracking RU2624010C2 (en)

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DE102012006992A DE102012006992A1 (en) 2012-04-05 2012-04-05 Process for the separation of olefins with mild cleavage
DE102012006992.8 2012-04-05
PCT/EP2013/000973 WO2013149721A1 (en) 2012-04-05 2013-04-02 Method for separating olefins with gentle cleavage

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AU (1) AU2013243037B2 (en)
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